Mathematics 2018 Past Questions | WAEC

Study the following Mathematics past questions and answers for JAMBWAEC  NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.

41. MATHEMATICS past question

The diagram shows a trapezium inscribed in a semi-circle. If O is the mid-point of WZ and |WX| = |XY| = |YZ|, calculate the value of m

  • A. 90º
  • B. 60º
  • C. 45º
  • D. 30º

42. ec20BKZnNiz9cwa18mVZJy9U32keWWZuMTkJqbmX

In the diagram, PQ//RS. Find x in terms of y and z

  • A. x = 240\(^o\) – y – z
  • B. x = 180\(^o\) – y – z
  • C. x = 360\(^o\) + y -z
  • D. x = 360\(^o\) – y – z

43. rvivYQyQNpaGq0VK8Vb37HttSmB02ZP9ls68Z79b

In the diagram, PQ is a straight line, (m + n) = 110\(^o\) and (n + r) = 130\(^o\) and (m + r) = 120\(^o\). Find the ratio of m : n : r

  • A. 2 : 3 : 4
  • B. 3 : 4 : 5
  • C. 4 : 5 : 6
  • D. 5 : 6 : 7

44.waec 2018

Donations during the launching of a church project were sent in sealed envelopes. The table shows the distribution of the amount of money in the envelope. How much was the donation?

  • A. N26,792.00
  • B. N26,972.00
  • C. N62.792.00
  • D. N62,972.00

45A piece of thread of length 21.4cm is used to form a sector of a circle of radius 4.2cm on a piece of cloth. Calculate, correct to the nearest degree, the angle of the sector.
[Take \(\pi = \frac{22}{7}\)]

  • A. 170\(^o\)
  • B. 192\(^o\)
  • C. 177\(^o\)
  • D. 182\(^o\)

46. If tan x = \(\frac{4}{3}\), 0\(^o\) < x < 90\(^o\), find the value of sin x – cos x

  • A. 1\10
  • B. 1\5
  • C. 5\12
  • D. 1 2/5

47. Given that Y is 20cm on a bearing of 300o from x, how far south of y is x?

  • A. 10cm
  • B. 15cm
  • C. 25cm
  • D. 30cm

48. The diagonals of a rhombus WXYZ intersect at M. If |MW| = 5cm and |MX| = 12cm, calculate its perimeter

  • A. 42cm
  • B. 48cm
  • C. 52cm
  • D. 60cm

49. M and N are two subsets of the universal set (U). If n(U) = 48, n(M) = 20, n(N) = 30 and n(MUN) = 40, find n(M  N)

  • A. 18
  • B. 20
  • C. 30
  • D. 38

50.  The graph of y = x² and y = x intersect at which of these points?

  • A. (0,0), (1,1)
  • B. (0,0), (0,1)
  • C. (1, 0), (0, 0)
  • D. (0, 0) (0, 0)
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